PowerGlass Timer

The PowerGlass timer is a five-minute waterproof timer that you can use to keep track of time in the shower, while swimming, or anywhere else you need to keep track of time while your wet.

- Waterproof box

- FeatherWing huzzah

- 2 8*8 led matrixes

- Battery and usb cable that can be powered by battery

https://learn.adafruit.com/adafruit-8x16-led-matri...

Follow the instructions in this link up to the end of usage.

Using the Arduino coding system, upload the following code to your Featherwing.

#include #include #include "Adafruit_LEDBackpack.h"Adafruit_8x16minimatrix matrix = Adafruit_8x16minimatrix();void setup() { // put your setup code here, to run once: //while (!Serial); Serial.begin(9600); Serial.println("16x8 LED Mini Matrix Test"); matrix.begin(0x70); // pass in the address}void loop() { // put your main code here, to run repeatedly:matrix.clear();matrix.drawRect(0,0, 8,16, LED_ON);matrix.writeDisplay(); // write the changes we just made to the displaydelay(6250);matrix.drawPixel(2,2, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,2, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,2, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,2, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,3, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,3, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,3, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,3, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,4, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,4, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,4, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,4, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,5, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,5, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,5, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,5, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,6, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,6, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,6, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,6, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,7, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,7, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,7, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,7, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,8, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,8, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,8, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,8, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,9, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,9, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,9, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,9, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,10, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,10, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,10, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,10, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,11, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,11, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,11, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,11, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,12, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,12, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,12, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,12, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(2,13, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(3,13, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(4,13, LED_ON);matrix.writeDisplay();delay(6250);matrix.drawPixel(5,13, LED_ON);matrix.writeDisplay();delay(6250);}

Using a battery and a usb cable, power your featherwing huzzah and insert it into your waterproof box. Every time you plug in the timer, the timer will start!